116722domain: NAppears in sequencesExpansion of (eta(q^6) * eta(q^10) / (eta(q) * eta(q^15)))^2 in powers of q.at n=26A263348G.f. A(x) satisfies: A(x) = 1/(1 + (-x)^a(0)/(1 + (-x)^a(1)/(1 + (-x)^a(2)/(1 + (-x)^a(3)/(1 + ...))))), a continued fraction.at n=21A307543a(n) = n! * Sum_{k=1..n} Sum_{d|k} 1/(d! * (k/d)!).at n=7A356004